Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0017a2551b16ce4…

MALICIOUS

PDF

81.9 KB Created: 2021-09-17 07:37:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 7015ae4735b1b362422f415b85a7fec9 SHA-1: 8317a5cc97bd2881cf7d4f658bdb1a3561404eb4 SHA-256: c0017a2551b16ce47c1c0d7f8c4ab3869151b9a4a043ffdd97d2f3d608681c66
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is a PDF containing embedded JavaScript, which is a common vector for malicious activity. Heuristics indicate it functions as a link farm, directing users to compromised WordPress upload storage and disposable hosting sites. The 'SE_PAYMENT_REDIRECT_LURE' heuristic strongly suggests a business email compromise (BEC) or phishing attempt, aiming to trick users into believing payment instructions have changed. The embedded JavaScript likely facilitates the redirection or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ecoevopublisher.com/files/upfiles/file/lanim.pdf In PDF document text
    • https://salvamontbihor.ro/app/webroot/files/userfiles/files/8065067611.pdfIn PDF document text
    • http://dogoducthien.com/uploads/files/mimisizoseratorajese.pdfIn PDF document text
    • http://patrick-jardinage.fr/ckfinder/userfiles/files/soxiwopovetovuxababulu.pdfIn PDF document text
    • http://seoulgreeter.com/userData/board/file/80702181131.pdfIn PDF document text
    • http://studiofantino.it/userfiles/files/mororoxuvobexubulifov.pdfIn PDF document text
    • https://tidurmalam.com/contents/files/11948857677.pdfIn PDF document text
    • https://aathichudi.org/userfiles/file/rumivenobusajifigemazan.pdfIn PDF document text
    • http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/20903836217.pdfIn PDF document text
    • http://hnc2.com/userfiles/file/faniriratizutesemoseso.pdfIn PDF document text
    • http://teormech.ru/teormech/usrimg/file/zogizezizonumomagax.pdfIn PDF document text
    • http://thebrownbag.vn/upload/files/87673050145.pdfIn PDF document text
    • https://vetamblj.si/ckfinder/userfiles/files/xutumemolipapip.pdfIn PDF document text
    • https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/e5a16768fdeb3838a2c18f11f8ba1308/pifowafa.pdfIn PDF document text
    • https://chupwo.com/editor_upload/file/lefexupazub.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16144166cd6fe8---baponuvimevijikoxerife.pdfIn PDF document text
    • http://soloparamideco.com/js/new/fckeditor/userfiles/file/77046456104.pdfIn PDF document text
    • http://www.serenissimaservizi.com/files/jedudatuluweno.pdfIn PDF document text
    • https://samavetpharm.com/userfiles/files/vobun.pdfIn PDF document text
    • http://radiopoint.cz/userfiles/file/38568758477.pdfIn PDF document text
    • https://mmagame.com/userfiles/file/85763878843.pdfIn PDF document text
    • https://borgopitti.it/userfiles/file/4264881777.pdfIn PDF document text
    • http://irinaburmistrova.ru/files/71340542726.pdfIn PDF document text
    • http://domuran.pl/files/file/pubatepuvazirepinekos.pdfIn PDF document text
    • http://abnigakgdsg.friendship-match.com/upload/files/rusareze.pdfIn PDF document text
    • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/dsjvikkuo5n7rvtfig9bi8q0s2/lerofafisisavubedafo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=how+to+recover+a+forgotten+phone+passwordPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB09 17748 bytes
SHA-256: 82754965d931b4497c866072b13738c35b93f3e717dca00d16cb55b8c4311889
font_01_sfnt_off000108d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000120e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120E7 10904 bytes
SHA-256: 85e4f0265e434e72860fbd812accf10cdac274111156feae105ca75447bb5f0f

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